On the other end of the humor spectrum we find
simulation games. These range from sports titles, to simulation shooters like Insurgency: Sandstorm and Hell Let Loose. Milsims like these tend to be incredibly dry games, and for good reason. Someone who wants to play a hardcore war simulator is not there for witty jokes or easter eggs. The lesson to draw from these titles is that it is paramount for a developer to understand their audience. People play games for a myriad of reasons, and understanding when not to crack a joke is just as important as being funny in another title.
Balancing humor in a simulation game can be tricky, though. The reality is, real life is often full of humor. This forces dev teams to decide just how far they want to stretch things in their games. A great case study of this are sports titles. Since the late 90s, games like Quarterback Club and NHL began incorporating play-by-play announcers and color commentators. This addition added tons of depth and realism to sports games, and just like their real-world counterparts, added some comic relief to the virtual gridirons and rinks of the world. Hearing some friendly banter between two announcers, or listening to them enthusiastically cheer on a big man as he tromps to the end zone with sloth-like speed can make for some good laughs.